void sst_restore_fw_context(void)
{
struct snd_sst_ctxt_params fw_context;
struct ipc_post *msg = NULL;
pr_debug("restore_fw_context\n");
/*check cpu type*/
if (sst_drv_ctx->pci_id != SST_MFLD_PCI_ID)
return;
/*not supported for rest*/
if (!sst_drv_ctx->fw_cntx_size)
return;
/*nothing to restore*/
pr_debug("restoring context......\n");
/*send msg to fw*/
if (sst_create_large_msg(&msg))
return;
sst_fill_header(&msg->header, IPC_IA_SET_FW_CTXT, 1, 0);
msg->header.part.data = sizeof(fw_context) + sizeof(u32);
fw_context.address = virt_to_phys((void *)sst_drv_ctx->fw_cntx);
fw_context.size = sst_drv_ctx->fw_cntx_size;
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32),
&fw_context, sizeof(fw_context));
spin_lock(&sst_drv_ctx->list_spin_lock);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock(&sst_drv_ctx->list_spin_lock);
sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
return;
}
/*
* sst_send_sound_card_type - send sound card type
*
* this function sends the sound card type to sst dsp engine
*/
static void sst_send_sound_card_type(void)
{
struct ipc_post *msg = NULL;
if (sst_create_short_msg(&msg))
return;
sst_fill_header(&msg->header, IPC_IA_SET_PMIC_TYPE, 0, 0);
msg->header.part.data = sst_drv_ctx->pmic_vendor;
spin_lock(&sst_drv_ctx->list_spin_lock);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock(&sst_drv_ctx->list_spin_lock);
sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
return;
}
static void sst_save_dsp_context(void)
{
struct snd_sst_ctxt_params fw_context;
unsigned int pvt_id;
struct ipc_post *msg = NULL;
unsigned long irq_flags;
/*check cpu type*/
if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
return;
/*not supported for rest*/
if (sst_drv_ctx->sst_state != SST_FW_RUNNING) {
pr_debug("fw not running no context save ...\n");
return;
}
/*send msg to fw*/
if (sst_create_large_msg(&msg))
return;
pvt_id = sst_assign_pvt_id(sst_drv_ctx);
sst_drv_ctx->alloc_block[0].sst_id = pvt_id;
sst_drv_ctx->alloc_block[0].ops_block.condition = false;
sst_drv_ctx->alloc_block[0].ops_block.on = true;
sst_fill_header(&msg->header, IPC_IA_GET_FW_CTXT, 1, pvt_id);
msg->header.part.data = sizeof(fw_context) + sizeof(u32);
fw_context.address = virt_to_phys((void *)sst_drv_ctx->fw_cntx);
fw_context.size = FW_CONTEXT_MEM;
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32),
&fw_context, sizeof(fw_context));
spin_lock_irqsave(&sst_drv_ctx->ipc_spin_lock, irq_flags);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock_irqrestore(&sst_drv_ctx->ipc_spin_lock, irq_flags);
sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
/*wait for reply*/
if (sst_wait_timeout(sst_drv_ctx,
&sst_drv_ctx->alloc_block[0].ops_block))
pr_err("sst: err fw context save timeout ...\n");
sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT;
pr_debug("fw context saved ...\n");
return;
}
/*This function is called when any codec/post processing library
needs to be downloaded*/
static int sst_download_library(const struct firmware *fw_lib,
struct snd_sst_lib_download_info *lib)
{
/* send IPC message and wait */
int i;
u8 pvt_id;
struct ipc_post *msg = NULL;
union config_status_reg csr;
struct snd_sst_str_type str_type = {0};
int retval = 0;
if (sst_create_large_msg(&msg))
return -ENOMEM;
pvt_id = sst_assign_pvt_id(sst_drv_ctx);
i = sst_get_block_stream(sst_drv_ctx);
pr_debug("alloc block allocated = %d, pvt_id %d\n", i, pvt_id);
if (i < 0) {
kfree(msg);
return -ENOMEM;
}
sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
sst_fill_header(&msg->header, IPC_IA_PREP_LIB_DNLD, 1, pvt_id);
msg->header.part.data = sizeof(u32) + sizeof(str_type);
str_type.codec_type = lib->dload_lib.lib_info.lib_type;
/*str_type.pvt_id = pvt_id;*/
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32), &str_type, sizeof(str_type));
spin_lock(&sst_drv_ctx->list_spin_lock);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock(&sst_drv_ctx->list_spin_lock);
sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
if (retval) {
/* error */
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
pr_err("Prep codec downloaded failed %d\n",
retval);
return -EIO;
}
pr_debug("FW responded, ready for download now...\n");
/* downloading on success */
mutex_lock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->sst_state = SST_FW_LOADED;
mutex_unlock(&sst_drv_ctx->sst_lock);
csr.full = readl(sst_drv_ctx->shim + SST_CSR);
csr.part.run_stall = 1;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
csr.part.bypass = 0x7;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
sst_parse_fw_image(fw_lib);
/* set the FW to running again */
csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
csr.part.bypass = 0x0;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
csr.part.run_stall = 0;
sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
/* send download complete and wait */
if (sst_create_large_msg(&msg)) {
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
return -ENOMEM;
}
sst_fill_header(&msg->header, IPC_IA_LIB_DNLD_CMPLT, 1, pvt_id);
sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
msg->header.part.data = sizeof(u32) + sizeof(*lib);
lib->pvt_id = pvt_id;
memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
memcpy(msg->mailbox_data + sizeof(u32), lib, sizeof(*lib));
spin_lock(&sst_drv_ctx->list_spin_lock);
list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
spin_unlock(&sst_drv_ctx->list_spin_lock);
sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
pr_debug("Waiting for FW response Download complete\n");
sst_drv_ctx->alloc_block[i].ops_block.condition = false;
retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
if (retval) {
/* error */
mutex_lock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->sst_state = SST_UN_INIT;
mutex_unlock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
return -EIO;
}
pr_debug("FW success on Download complete\n");
sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
mutex_lock(&sst_drv_ctx->sst_lock);
sst_drv_ctx->sst_state = SST_FW_RUNNING;
mutex_unlock(&sst_drv_ctx->sst_lock);
return 0;
}
